import { BigNumberish } from "ethers";
import { ProviderOrSigner } from "../core/types";
import { ChainId } from "./chain";
/**
 * Currency metadata.
 * @public
 */
export interface Currency {
    name: string;
    symbol: string;
    decimals: number;
}
export interface NativeToken extends Currency {
    wrapped: {
        address: string;
        name: string;
        symbol: string;
    };
}
/**
 * Currency metadata & value.
 * @public
 */
export interface CurrencyValue extends Currency {
    value: string;
    displayValue: string;
}
/**
 * @internal
 */
export declare const NATIVE_TOKEN_ADDRESS = "0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee";
/**
 * @internal
 */
export declare function getCurrencyMetadata(providerOrSigner: ProviderOrSigner, asset: string): Promise<Currency>;
/**
 * @internal
 */
export declare function getCurrencyValue(providerOrSigner: ProviderOrSigner, asset: string, price: BigNumberish): Promise<CurrencyValue>;
/**
 * @internal
 */
export declare function isNativeToken(tokenAddress: string): boolean;
/**
 * @internal
 */
export declare function getCurrencyBalance(providerOrSigner: ProviderOrSigner, tokenAddress: string, walletAddress: string): Promise<CurrencyValue>;
export declare function getNativeTokenByChainId(chainId: ChainId): NativeToken;